In history class, kuo takes notes on a laptop. however, by doing this, she misses important details and performs poorly on exams. when she asks her instructor for advice, she is most likely to be told to

dont understand question can you makeit more better

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."